Prasophyllum occultans
R.J.BatesFlowering stem slender, 10–35 cm high. Leaf-blade to 30 cm long, 3–5 mm diam. at base, apex suberect. Flowers 4–10, greenish and dull brown, fragrant, in a loose raceme to 8 cm long; ovary ovoid, to 6 mm long, inclined at c. 45 deg. to the rachis; sepals 6–8 mm long, dorsal sepal ovate-lanceolate, lateral sepals free almost to base, erect, slightly divergent; petals 5–6 mm long, narrow-oblong. Labellum almost sessile, ovate-lanceolate, 5–6 mm long, lamina greenish white, recurved at middle, margins crinkled, callus greenish brown, occupying about half the labellum surface, hardly raised, extending almost to labellum apex, papillate towards margins and on to labellum lamina. Column appendages pale green, oblong, c. 2 mm long. Flowers Sep.–Oct.
Wim. Also SA. Known in Victoria by a single collection from near Tallageira in Eucalyptus leucoxylon woodland on sandy loam.
Prasophyllum occultans is characterised by its few, small, dull-coloured flowers with free lateral sepals. The labellum callus is only slightly raised and is papillate around the edges.